Abrasive-supplying means



"ummm March l, 11927.

H. w. HILL ABRAsIVvE SUPPLYING MEANS \f Filed May 16, 1925 2 sheets-sheet 1 Z7 isi,

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l, l March 1, 1927. l H. W. HILL 6 9344 `ABRAS IVE SUPPLYING MEANS Filed May' 16, 1925 2 sheets-sheet 2 Harry 1122172? 61H0: "wg

Patented Mar.. 1,?1927,

HARRY w;-HILL,-oF-sonrnnn1nen,- MAssAoH-Usnmjrs Assrenon To AmniucAnform- CAL COMPANY5` or sonr'nnnrnen; MAssAcHUsETT-s, A v oLU-Nr'A-RY; AssoorA'rIon ABRAsrvn-SUYBLSQING MEANS."

This invention relates to Vneiv and. useful improvements in means for. supplying. an

abrasive, such as rouge, emery.7 or thelike,

to lens surfacing machines.

It iswvell` known :that in the polishing of ophthalmic lenses it is essential that these lensesbe constantly supplied` with an abrasive, usuall7 r ouge, in order.. that' a highly polished. surface Ina-y. .be obtained In. lens. polishing.l machinesfprior..to the present. invention, to the`r lens. was performed either byhand or'by. Whatjis known as the; scoop method, svherein'/ a quant-ity of rouge was placed ivithinthe rouge; pan and thrown onto the lens by theactionfl (if-,centrifugal "force as the pan was rotated. While this method PQSseSSPd maluwdvantages Qvlf*t applying the rougeby..hand-7 yetz it; was necessary to moreor; leSscQnStantly. Watch the machine so as to replenish the ofrougeas it wasneeded(v A i efore; -oneof fthe rvprincipal objects of the present'invention is the provision lof a device for automatically;supplying an abrasive to. a lens` surfacin'gmachine so that thezconstant-Watching. thereof` will noti be necessary. Y A Another obj ectof the invention is .to yconst ruct 'such av device of. this character. Wherethe. abrasive vbe, 4i'ntermittently supplied toY theflens surfacing.'machine, and wherein is provided new andfnovel means forj regnlatingthe flow thereof.

Another obj ect 's lto fprovide. such. a device whichY is cap ableof supplying., an. abrasive `to more than one machine .atthe saine time; 3

.A fut-hery object; is.l tof provide. such a devicepwhifh maybe mounted in series, and -Wh'erein the operation o f. any/one may be discontinued `Without. affectingfthe operation of the others. n

iththese and other objects in View the invention resides in the novel construction,

. combination and arra ngi-iin'ent of; parts hereinafterE more. fullyl set forth, illustrated in the accompanying. drawings, and particularly. pointedloutinthe appended. claims.'` l

lInv the o dra'iviugs forming a, part. off this application:.k

F'guie l isaviewf, in elevation the present invention as applied toa` lense surfacing machine;

Figure-Qfis a'verticalA horizontal sectional the application of rongey showing means Figure' 3 isfavieiv taken on line 3 3 of Fguel;

Figurell is a View, in elevation', of the lowery 'endof vthe plungeii.

In'the *draivilig'I wherein fon the purpose ofV illustration is shown: a` preferred jenibodi'- mentgof the `inveiiliioin the numeral' lOdeSlgnates a IensSurfaCing inafclnne in itsentirety fand'A comprises in its construction `lray spindle 1li supported..I in;` the `j ournall i l2 ."andf being driven byine-an's of thebeltandpull'ey eennection 13. Therotatable Sspindle 11 supports atjon'e end the*lensfsurfacingjtool14 WhichV is deta-chableftherefi'oiri'.- so that? any desired curvature of, tool 1n`1 'ay1beiemployed.

Arrangedy opposedfrelation to the s urfacing" tool 14 is" spindle 15 jouiiialed within the upper, and 1 lower; bearings 16.; and

end. a "lens,

spindle 1.5 .which isi flvei'i, by ineens i 'of the beltaiid'piillev 1Q.

The ,lovver-t bearing 17. is forined'integrally Vwith thelbracket membery 2Q,'being,`provided at its. Olite? end. with) the! hezertlillv Clisposed` bearing, .21, in1 Wiiih ris l mqum'edj the shown and; desrbedgit is, of course, obvious thata'nfv.. desired.' type may-bei eIiPlQyd which, will accomplish tivet the gear 23 by means of a spacing collarV 27 encircling `thespindle .15. Carried bythe gear', Zand thfepiilley. 19 'is' a 'key 28 Which operates in'A a" groove formed in the spindle 'So fthat While'thegear .24 andthe pulley 19 Positioned in close4 proximity to the surfacing I'nffchiiiefV is`y the automatic abrasive s iipplyingfineans designated generally' at 29 and f comprising linits con" structioiiy body inemberf3QA` havingfa; vertieal bore 31 therethroiig'h and au transversejbore 32 interceptthe. resnltsfdesired.

portion having a longitudinal bore and a transverse bore intersecting the first named bore, a'plunger mounted in the longitudinal bore and extendable into the transverse bore,

`an abrasive conducting member carried by the body portion, and means engaging the" plunger to reciprocate it in the longitudinal bore oi' the body portion.

4. A device for supplying an abrasive to a. lens surfacing machine including a body portion having a longitudinal bore and a transverse bore through which is arranged' to flow an abrasive material, a plunger in the longitudinal bore and extendable into the transverse bore, a member carried by `the body portion having an opening therey through communicating with the transverse bore, and means for reciprocating the communicating with the pipe line, a plunger in the longitudinal bore adapted to extend into the transverse bore, an outletl member secured to the body portion and having an opening therethrough, and means to reciprocate the plunger to permit the abrasive in ythe pipe line to pass through the opening in the outlet member.

G. A `device for supplying an abrasive to a lens surfacing machine including an abrasive supply tank, a pipe line between the tank andthe machine, a pump in the pipe line,-an abrasive distributing member in the pipe `line comprising a body portion having a longitudinal bore and a transverse bore comn'iunicating with the pipe line, a plunger in the longitudinal bore extendable into the transvense bore, an outlet member secured to the body portion and having an opening therethrough, conducting means extending 'from the opening to the machine, a Weight on the plunger, and a movable cam member engaging the Weight to reciprocate the plunger to permit the abrasive in the pipe line to flow through the opening in the outn let member onto the conducting member.

HARRY W. HILL; 

